1、MIL-C-82656 68 W 7799706 0323048 3 W . - MIL-C-82656 (OS) 31 January 1977 Superseding (see section 6) MILITARY SPECIFICATION CARBON BLACK This specification is approved for use by the Naval Sea Systems Command, Department of the Navy and is available for use by all Departments and Agencies of the De
2、partment of Defense. _ 1. SCOPE 1.1 Scope. This specification covers one type of carbon black ref erred to herein as “the material“. 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of
3、this specification to the extent specified herein STANDARDS Mi lit ar y MIL-STD-105 MIL-STD-129 MIL-STD-1218 PUBLICATIONS Sampling Procedures and Tables for Inspection by Attributes Marking for Shipping and Storage ACS Chemicals Naval Sea Systems Command (Code Ident 10001) OD 18871 Volatiles by Dryi
4、ng in an Oven or . Furnace, Determination of pies of specifications , standards , drawings , and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) Beneficial comments (recomm
5、endations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Ordnance Station, Standardization Division (611)., Indian Head, Maryland 20640 by using the self-addressed Standardi- zation Document Improvement P
6、roposal (DD Form 1426) appearing at tne end of this document or by letter. ! FSC 6811 Licensed by Information Handling Services2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on the date
7、 of the invitation for bids or the request for proposal shall apply. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASJIM) ASTM D 305-72 Solvent-Extractable Material in Black Pigments ASTM D 1506-75 P Ash Content ofXarbon Black ASTM D 1509-75 Heating Loss of Carbon Black ASTM D 1512-75 pH Value of Carb
8、on Black (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103) CODE OF FEDERAL REGULATIONS 49 CFR 100-199 Transport at ion (The Code of Federal Regulations is available from the Superintendent of Documents, U.S. Gover
9、nment Printing Office, Washington, DC 20402, Orders should specify “49 CFII TOO-199 (latest revision)“). NATIONAL MOTOR FR.EIGHT TRAFFIC ASSOCIATION, INC, AGENT National Motor Freight Classification (Application for copies should be addressed to American Trucking Associations, Attn: Tarriff Order Se
10、ction, 1616 P Street, Washington, DC 20036. UNIFORM CLASSIFICATION COMMITTEE, AGENT Uniform Freight Classification (Application for copies should be addressed to the Uniform Classi- fication Committee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606. ) (Technical society and technical associ
11、ation specifications and standards are generally available for reference from libraries, are distributed among technical groups and using Federal agencies.) They 3. REQUIREMENTS 3.1 Material. The material shall be carbon black in fine powder fom. 2 Licensed by Information Handling ServicesMIL-C-8265
12、6 b m 779990b 0323050 T m MIL-C-82656 (OS) 3.2 Chemical and physical properties. The chemical and physical properties of the material shall be in accordance with TABLE I. TABLE I. Chemical and physical properties, r CHARACTERISTIC REQUIREMENTS MIN MAX I I I I I Heating loss, wt% I- I 0.50 I I Ash, w
13、t% l- 1 0.50 I Acetone extract, wt% - O. 50 - pH Value 7.0 9.7 Surface area, m/g 5. O 7.5 Volatiles, wt% (moisture free basis) - 4. O 3.3 Workmanship. The material shall be uniform, free from contaminants, foreign material or any other defect that would prevent its use for the purpose intended. 4. Q
14、UALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. fied in the contract, the contractor may use his own or any other facilities suitable for t
15、he performance of the inspection requirements specified herein, unless disapproved by the Government. reserves the right to perform any af the inspections set forth in the specification where such inspections are deemed necessary to assure that supplies and services conform to prescribed requirement
16、s. Except as otherwise speci- The Government 4.2 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be performed under the following conditions: a. Temperature: Room ambient 18 to 35OC (65 to 95F) b. Altitude: Normal ground c. Vibration: None d. Humidity: Room ambient
17、 to 95 percent relative, maximum 4.3 Sampling. 3 Licensed by Information Handling ServicesMIL-C-82656 (OS) 4.3.1 - Lot. Unless otherwise specified in the contract (see 6.2), a lot shall consist of all material manufactured in one continuous production run or in one batch, under essentially identical
18、 conditions, from the same raw materials, and to be offered for acceptance at one time. Several batches, manufactured from the same raw materials, may be blended to form a uniform larger batch which shall then constitute a lot for inspection purposes. 4.3.2 Sampling. Sampling for quality conformance
19、 inspection shall be in accordance with inspection level I of MIL-STD-105, unit shall be one unit package or container of material. shall consist of sufficient material to perform the quality conformance tests as specified in 4.4. The sample Each sample 4.4 Quality conformance inspection. Each sampl
20、e obtahed in accordance with 4.3.2 shall be subjected to the tests of 4.5. The acceptable quality level (AQL) shall be 2.5% defective. When specified in the contract (see 6.2), the contractor shall furnish test reports showing quantitative results for all quality conformance tests specified for each
21、 lot of material. 4.5 Tests. Unless otherwise specified herein, all chemicals shall be ACS grade in accordance with MIL-STD-1218. 4.5.1 Heating loss. The heating loss shall be determined in accordance with ASTM D 1509-75. 4.5.2 Ash content, The ash content shall be determined in accordance with ASTM
22、 D 1506-75 with the following exceptions: a, b. c. The calculation shall be corrected so that C = weight of crucible plus the sample, g, and D = weight of crucible plus the ash, g. The sample shall not be dried prior to weighing. The sample shall be ignited at 95OOC. 4.5.3 Acetone extract. The aceto
23、ne extract shall be determined in accordance with ASTM D 305-72. The solvent shall be acetone. The specimens shall be extracted for 4 hours. 4.5.4 pH value, The pH value shall be determined in accordance with ASTM D 1512-75. 4.5.5 Surface area. The surface area shall be determined in accordance with
24、 the following: a, Reagents: 1, Standardized iodine solution, 0.01 normal (N). 2. Standardized sodium thiosulfate solution, 0.01 N, 3. Starch indicator solution, 1 percent. 4 Licensed by Information Handling Services.- MIL-C-8265b 68 7999706 0323052 3 MIL-(2-82656 (OS) b. Apparatus: Platinum crucibl
25、e with cover, 15 ml (type used in coal analysis: c. Procedure: Add sufficient quantity of the sample to fill the crucible to about 6 mm from the top. Place the cover tightly on the crucible and heat in a muffle furnace at 925“ 1: 20 C for 7 minutes. Remove the crucible from the furnace and cool in a
26、 desiccator with the crucible cover still in place. and discard 8 to 12 mm of the top layer of the sample. Transfer the remaining sample to a flask supplied with a glass stopper. Add 100 ml of iodine solution, stopper and transfer to the mechanical shaker. Shake for approximately 30 minutes. Trans-
27、fer the solution to a centrifuge tube, stopper and centrifuge until the solution is clear. If the solution does not become clear, filter through filter paper in a glass funnel. Using a buret, transfer 40 ml of the centrifuged solution to an iodine flask and titrate with the standardized sodium thios
28、ulfate until nearly all of the free iodine is neutralized. 4 drops of starch solution and complete the titration. blank using 40 ml of the standardized iodine solution. blank shall be processed through the same procedure as the sample and a blank shall accompany each determination, 1. Iodine absorpt
29、ion, volume % =q X 100 in blank, ml in sample, ml 0.1mm diameter hole should be punched in cover). Remove Add 3 or Run a The d. Calculation: where: A = volume of sodium thiosulfate solution used B = volume of sodium thiosulfate solution used m2/g = c(O.937) - 4.5 D 2. Surface area, where: C = iodine
30、 absorption, volume % (from 1. above) D = sample weight, g 4.5 and 0.937 = empirical constants for the specific case of narrow size range of carbon black particles e. Report the results of at least 2 determinations and their average. 4.5.6 Volatiles. The weight percent (wt%) volatiles shall be deter
31、mined on a moisture free basis in accordance with OD 18871. 4.6 Packaging inspection. The packaging, packing and marking shall be inspected to verify conformance with the requirements of section 5. 5. PACKAGING 5.1 Packaging and packing. Unless otherwise specified in the contract (see 6.2), packagin
32、g and packing shall be level C, 5 Licensed by Information Handling ServicesLicensed by Information Handling ServicesMIL-C-82656 (OS) *DIDS (Data Item Description/DD Form 1664) for the above require- ments will be documented in the applicable ADL (Authorized Data List). Such data will be delivered as
33、 identified on completed (numbered) DIDS when specified on DD Form 1423 (Contract Data Requirements Lists) and incorporated into applicable contracts. 6.3 Suggested source of supply. A product that has met the requirements of this specification in past procurement actions is Thermax, manufactured by
34、 R. T. Vanderbilt Company, 230 Park Avenue, New York, NY 10017. This information is for the convenience of the procuring activity and is not to be construed as a waiver of any requirement of this specification nor as any limitation of additLonal- potential sources of supply. * 6.4 Supersession infor
35、mation. MIL-C-82656 is intended to be used in lieu of AS 3055 (Code Ident 30003) dated 6 December 1974 for Naval Sea Systems Command procurement. Custodian: . Preparing Activity: Navy - OS Navy - OS Project Number: 6 810-NA30 .fr U. C. GOVERNMENT PRINTING OFFICE: 1977-703-(120/1941 7 Licensed by Information Handling Services
